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3 years ago

Rosie has £m in her pocket she is given £4 pocket money write an expression for how much money she has now

Mathematics

1 answer:

aksik [14]3 years ago

3 0

Answer:

m+4

Step-by-step explanation:

She currently has a variable "m" in her pocket which we don't know, BUT we know how much she is getting, which is 4.

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Solve the system:<br> x + 5y = -15<br> -2x -10y = 30*

Ksju [112]

Answer:

x= -5/3 y-5

Step-by-step explanation:

6 0

3 years ago

Which two are equivalent?

never [62]

Answer:

Expression I and IV

Step-by-step explanation:

Expression I simplified :

3n + 7 + n + 4n
8n + 7
Expression I = Expression IV

7 0

2 years ago

In 2010, the number of houses built in Town A was 25 percent greater than the number of houses built in Town B. If 70 houses wer

Stella [2.4K]

Answer:

The number of houses built in Town B is 56.

Step-by-step explanation:

We are given that in 2010, the number of houses built in Town A was 25 percent greater than the number of houses built in Town B.

Also, 70 houses were built in Town A during 210.

Let the number of houses built in Town B be 'x'.

So, according to the question;

Number of houses built in Town A = Number of houses built in Town B + 25% of the houses built in Town B

$70 = x + (25\% \times x)$

$70 = x(1+0.25)$

$x=\frac{70}{1.25}$

x = 56

Hence, the number of houses built in Town B is 56.

8 0

2 years ago

What is universal gravitational constant

koban [17]

Answer:

6.67408 × 10^-11 m^3 kg^-1 s^-2

Step-by-step explanation:

F = G M 1 M 2 d 2 , where F is the gravitational force between two point masses, M1 and M2; d is the distance between M1 and M2; G is the universal gravitational constant, usually taken as 6.670 × 1011 m3/(kg)(s2) or 6.670 × 10−8 in centimeter–gram–second units. a = F M 1 = G M 2 r 2 .

8 0

3 years ago

How many 4-digit numbers can be made from the digits 2, 3, 4, 5, 6, 7 if no digit is repeated in the same number?

jonny [76]

THis equals the number of permutations of 4 from 6.

= 6P4 = 6! / (6 - 4)! = 6! / 2! = 720/2 = 360 answer

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3 years ago